Support for dynamos.



PATENTED JULY 18, 1905.

W F RICHARDS SUPPORT FOR D YNAMOS. nruouxon FILED em -r. 21. 1904.

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UNITED STATES Patented July 18, 1905.

PATENT OEErc WILLARD F. RICHARDS, OF BUFFALO, NEl/V YORK, ASSIGNOR TOGOULD COUPLER COMPANY, OF NEWV YORK, N. Y.

SUPPORT FOR DYNAIVIOS.

SPECIFICATION forming part of Letters Patent No. 794,886, dated July 18,1905.

Application filed September 2'7, 1904. Serial No. 226,208.

To all whom it may concern:

Be it known that I, WILLARD F. RIoHARDs, a citizen of the United States,residing at Buffalo, in the county of Erie and State of New 5 York, haveinvented a new and useful Improvementin Supports for Dynamos, of whichthe following is a specification.

This invention relates to supports for electric dynamos which aremounted on railway- IO car trucks and driven from one of the caraxlesfor generating the electric current used for lighting the car or forother, purposes, and the invention is directed more particularly toimprovements in supports of the char- 5 acter disclosed in United StatesLetters Patent granted September 13, 1904, to C. M. Gould, assignee ofmyself, No. 769,920.

The primary object of the invention is to provide a cushioning supportof simple, strong, and desirable construction for relieving the dynamofrom the destructive effects of shocks and jars in a vertical directionto which the truck is subjected in service.

In the support described in said patent the 5 dynamo is pivoted and heldpositively from movement in a direction away from the caraxle by whichit is driven, but is permitted to yield in a direction toward thedrivingaxle, so that the driving chain or belt will not 3 be snapped orstretched when the truck-frame and the dynamo carried thereby aresuddenly shifted relative to the car-axle for any reason, which occurs,for instance, when the carbrakes are applied, on account of the play ofthe journals in their boxes and the boxes in their guides. Anotherobject of the invention is to provide said patented support with asimple and inexpensive adjunct for cushioning the dynamo against shocksin a vertical 4 direction, in addition to the means for allowing thedynamo to yield toward the car-axle. In the accompanying drawings,Figure 1 is a longitudinal sectional elevation of a portion of arailway-car truck provided with a dynamo-support embodying theinvention. Fig.

2 is a framentary plan view thereof, partly in section, in line 2 2,Fig. 1. Fig. 3 is a transverse sectional elevation thereof in line 3 3,Fig. 1.

Like letters of reference refer to like parts 5 in the several figures.Q

The truck-frame is of ordinary construction.

a and I) represent, respectively, one of the end and intermediatetransverse truck-beams, 5 5 0 one of the car-wheels, and d its axle.

E represents the dynamo, or it may represent a containing shell orcasing for the dynamo, and e the drive chain or belt for the dynamoconnecting chain-wheels or pulleys on the car-axle and dynamo-armatureshaft.

The dynamo-support, like that described in said patent, comprises twoparallel supporting brackets or bars F, each having a hori- Zontalportion which extends longitudinally 6 3 of the truck from thetransverse intermediate beam Z) and passes over and rests on the endbeam (6, and a vertical leg f, which depends below and in front of oroutside of the end beam. The brackets or bars F are bolted to the endand intermediate truck-beams, as shown, or may be attached thereto inany other suitable manner and are stifl'ened and strengthened byinclined braces f, which pass beneath the end beam (0 and have theirends riveted or otherwise fixed to the depending legs and horizontalportions of the brackets. The dynamo, as described in said patcut, ispivoted at its lower part to oscillate toward and from the drivingcar-axle. In the present support, however, the pivot is not fixed, butis mounted to slide vertically on the depending legs of thesupporting-brackets and is held normally in a central position bycushioning-springs, which allow the pivot to 5 yield to a limited extentboth up and down.

Gr represents the pivot bolt or pin, which passes through a perforatedlug g at the inner side of the lower portion of the dynamo and throughperforated hinge-lugs H. The latter 9 preferably have vertical stems Itprojecting upwardly and downwardly therefrom, which slide and are guidedin holes in fixed ears /1/, projecting outwardly from the vertical legsof the brackets F, on which they are formed or secured in any suitableway. The cushioningsprings shown at I are coiled about the stems of thehinge-lugs between shoulders on the latter and the fixed guide-ears onthe brackets. These springs yieldingly hold the hinge-lugs stationary inthe central position shown, but cushion the pivot G and dynamo supportedthereby and prevent any severe shock in a vertical direction from beingtransmitted from the truck-frame to the dynamo.

The dynamo is held positively from movement on its pivot away from thedriving caraxle and permitted to yield toward the axle by-a device whichis similar in principle to that described in said patent, but which ispreferably constructed as follows: K represents a rocking pin whichextends loosely through a lug is on the top of the dynamo E in adirection parallel with the pivot-bolt G and having eyes at its oppositeends, through which pass eyebolts Z, which are pivoted to the brackets Fby a bolt or pin Z passing through the eyes at the inner ends of theeyebolts and through perforated lugs on the upper portion of thebrackets. Adjustable stop-nuts m are screwed on the threaded shanks ofthe eyebolts l outside of the rocking pin K and positively hold thedynamo from outward movement, while coil-springs 77, surround saideyebolts between the inner side of the rocking pin K and adjusting-nutsn, screwed on the inner portions of the shanks of the eyebolts.

The stop and ad justing-nuts m and a are sup-- plemented, as usual, bylock-nuts to hold them after adjustment. The springs n press the rockingpin K out against the stop-nuts m, but allow it and the dynamo to yieldinwardly or toward the driving car-axle to relieve the drive chain orbelt from undue strain. The eyebolts being pivoted at their inner endsto the brackets and at their outer ends to the dynamo through the mediumof the rocking pin K do not prevent the vertical movement of the dynamowith its cushioned pivot. The dynamo is thus enabled to yield inwardlyto prevent injury to the drive chain or belt and at the same time canyield vertically up and down to relieve it from the jars and shocks towhich the car-truck is subjected in use.

The supportdescribed is intended especially for dynamos; but it ismanifestlysuitablealso for attaching motors to car-trucks.

I claim as'my invention 1. The combination of asupport, a dynamo, apivotal connection between the dynamo and said support which is capableof vertical movement on said support, means for yieldingly opposing thevertical movement ofthe pivotal connection, and means which normallyhold the dynamo stationary and which positively hold the dynamo frompivotal movement in a pivotal support for the dynamo whieh'is mounted toslide vertically, means for yieldingly opposing the vertical movement ofsaid pivotal support, drive connections between the dynamo and thecar-axle, and means which acts to normally hold the dynamo stationaryand which positively holds the dynamo from pivotal movement away fromthe car-axle but permits a pivotal movement of the dynamo toward thecar-axle, substantially as set forth.

4. The combination of asupport, hinge-lugs mounted to slide verticallyon said support, 4

springs arranged on opposite sides of said hinge-lugs to yieldinglyoppose the vertical movement thereof, a pivot-pin connecting saidhinge-lugs, a dynamo pivoted on said pin, and means for yieldinglyholding said dynamo from pivotal movement, substantially as set forth.

5. The combination of a car-truck, brackets secured to said truck andhaving depending vertical legs provided with projecting perforated ears,hinge-lugs having stems sliding in said perforated ears, coil-springssurrounding said stems between said hinge-lugs and said ears, a dynamopivoted to said hinge-lugs, and means for normally holding said dynamoagainst pivotal movement, substantially as set forth.

6. The combination with a car-truck, and dynamo, of brackets secured tothe truck and having vertical portions, parts mounted to move verticallyon said vertical portions of the brackets and pivotally connected to thelower portion of the dynamo, means for opposing the vertical movement ofthe dynamo, and means which connect the upper portion of the dynamo withthe truck and permit vertical and pivotal movement thereof,substantially as set forth.

Witness my hand this 19th day of September, 190A.

WILLARD F. RICHARDS.

Witnesses:

EDWARD (J. HARD, A. L. MOGEE.

